96 80 Series Cruiser low beam won't turn off

Submitted: Saturday, Jul 11, 2020 at 10:50
ThreadID: 140232 Views:933 Replies:5 FollowUps:4
Was on Fraser Island last week driving down the beach late afternoon, got back in camp turned off lights but the low beam stayed on, disconnected the wiring at the lights, got off the island for the drive home plugged the lights back in and still the same problems, had to disconnect low beam at sealed beams lights.
The high beam still goes up and down but the driving lights now have to be switched independently, before I could switch on and use with high beam and driving lights together or independently.
I know the car is fitted with auto lights as I have left the lights on and they turn off automatically after the key is removed.
Any advice much appreciated
Rod
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Reply By: RMD - Saturday, Jul 11, 2020 at 11:40

Saturday, Jul 11, 2020 at 11:40
It appears the auto lights off relay is remaining welded shut at it's contacts. Can you find it and open the can and check? If you leave it on high beam setting do the high beams turn off? If so it can be the main headlight supply relay contacts welded shut. If there is additional load with aux lights etc running off the system and not through a switched relay and loom, the additional current will weld contacts closed, ie, contacts cannot open as normal..

AnswerID: 632458

Follow Up By: Rodney C5 - Thursday, Jul 16, 2020 at 09:05

Thursday, Jul 16, 2020 at 09:05
Yes found the problem, the problem was the power feed wire to the light relay has gone hard from heat and age and rubbed causing the problem. replaced the 2 wires hardest part was getting the spade fittings out of the harness enclosure after being there for over 30 years.

Thanks to everyone who replied and offered assistance on the problem.

Cheers
Rod
1
FollowupID: 909284

Reply By: qldcamper - Monday, Jul 13, 2020 at 08:22

Monday, Jul 13, 2020 at 08:22
Driving on the beach is probably your answer. If the system has been working ok for a long time and goes screwy while in the presence of salt water spray........ it could just be co incidents but a good place to start looking, under the bonnet.
Id start with the driving light relay, depending on the switching system used on your particular car it could be as simple as the relay and or base full of salty water/sand allowing feedback to hold something on.
AnswerID: 632482

Follow Up By: Rodney C5 - Thursday, Jul 16, 2020 at 09:04

Thursday, Jul 16, 2020 at 09:04
Yes found the problem, the problem was the power feed wire to the light relay has gone hard from heat and age and rubbed causing the problem. replaced the 2 wires hardest part was getting the spade fittings out of the harness enclosure after being there for over 30 years.

Thanks to everyone who replied and offered assistance on the problem.

Cheers
Rod
1
FollowupID: 909283

Reply By: Member - McLaren3030 - Monday, Jul 13, 2020 at 16:16

Monday, Jul 13, 2020 at 16:16
Hi Rod,

Have you posted this question on the Landcruiser Owners On Line (LCOOL) forum? It is free to join, and there are separate sections for each series of Landcruiser.

Macca.
Macca.

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AnswerID: 632487

Reply By: Member - DOZER - Wednesday, Jul 15, 2020 at 20:17

Wednesday, Jul 15, 2020 at 20:17
probably getting power from the driving lights, if you pull the power wire to the relay, it should sort it.
b4 you bag me out, walk a mile in my shoes, then your a mile away and have my shoes :)

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AnswerID: 632524

Follow Up By: Member - shane r1 - Wednesday, Jul 15, 2020 at 20:41

Wednesday, Jul 15, 2020 at 20:41
Driving light power going to the low beam ?? How would that happen?
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FollowupID: 909260

Reply By: Member - shane r1 - Wednesday, Jul 15, 2020 at 20:42

Wednesday, Jul 15, 2020 at 20:42
G’day Rodney
Have you found out what’s causing your problem??
Cheers
Shane
AnswerID: 632525

Follow Up By: Rodney C5 - Thursday, Jul 16, 2020 at 09:02

Thursday, Jul 16, 2020 at 09:02
Shane,

Yes found the problem, the problem was the power feed wire to the light relay has gone hard from heat and age and rubbed causing the problem. replaced the 2 wires hardest part was getting the spade fittings out of the harness enclosure after being there for over 30 years.

Thanks to everyone who replied and offered assistance on the problem.

Cheers
Rod
0
FollowupID: 909281

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